1
a glass of sth
glass 作‘玻璃杯’时可数，复数 glasses。
She poured a glass of water.
她倒了一杯水。
玻璃
glasses — plural of glass
先理解核心含义，再看它在真实句子里的用法。
玻璃
a hard, usually transparent material made by heating sand with chemicals, used for windows, bottles, and other containers
She poured a glass of water.
她倒了一杯水。
一种无定形固体,通常透明,通过熔化硅砂并添加各种添加剂(通常加入苏打、钾碱和石灰)制成
An amorphous solid, often transparent substance, usually made by melting silica sand with various additives (for most purposes, a mixture of soda, potash and lime is added).
脆性透明固体,原子结构不规则
a brittle transparent solid with irregular atomic structure
任何无定形固体(无规则晶格者)
Any amorphous solid (one without a regular crystal lattice).
用于饮用液体的容器
a container for holding liquids while drinking
Please be careful with that glass, it's very fragile.
请小心那个玻璃杯，它很易碎。
The window is made of thick glass to keep out the cold.
这扇窗户由厚玻璃制成，以抵御寒冷。
She collects antique glass from the 19th century.
她收藏19世纪的古董玻璃器皿。
glass 作‘玻璃杯’时可数，复数 glasses。
She poured a glass of water.
她倒了一杯水。
glass 作‘玻璃’为不可数名词。
The vase is made of glass.
这个花瓶是玻璃制的。
glasses 常以复数形式表示‘眼镜’。
He bought a new pair of glasses.
他买了一副新眼镜。
Not this
I broke a glass.
Use this
I broke some glass.
英语中'glass'作'玻璃'（物质名词）时不可数，不能说'a glass'，应用不可数表达'some glass'。
Not this
I need two glass of water.
Use this
I need two glasses of water.
当glass表示'玻璃杯'（可数名词）时，复数形式为glasses，不能直接用单数glass。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
一杯水
She drank a glass of water.
她喝了一杯水。
碎玻璃
Be careful of the broken glass.
小心碎玻璃。
玻璃瓶
The wine is stored in a glass bottle.
酒存放在玻璃瓶里。
玻璃门
He opened the glass door to the garden.
他打开了通往花园的玻璃门。
彩色玻璃
The church has beautiful stained glass windows.
教堂有漂亮的彩色玻璃窗。
玻璃天花板（职场上无形的晋升障碍）
Many women face a glass ceiling in corporate leadership.
许多女性在企业管理层面临玻璃天花板。
玻璃天花板（指职场中升迁的无形障碍）
Many women still face a glass ceiling in corporate leadership.
许多女性在企业领导层仍面临玻璃天花板。
自身有短处，就别指责别人
You're criticizing her for being late, but you're always late yourself! People who live in glass houses shouldn't throw stones.
你批评她迟到，可你自己也总是迟到！自身有短处，就别指责别人。
玻璃下巴（指容易被打倒的弱点）
He has a glass jaw; one punch and he's down.
他有个玻璃下巴，一拳就倒了。
住在玻璃房子里的人不要扔石头。
You should be careful when criticizing others; people who live in glass houses shouldn't throw stones.
批评别人时要小心，住在玻璃房子里的人不要扔石头。
我曾有过一段爱情，感觉很棒，但很快发现它有一颗玻璃心。
The song 'Heart of Glass' by Blondie uses the phrase 'heart of glass' to describe a fragile relationship.
Blondie的歌曲《Heart of Glass》用‘玻璃心’来形容一段脆弱的关系。
Use glasses naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
glass的g像杯把，lass像女士，女士拿着玻璃杯。
Neutral register. Common contexts: material (windows, tableware), container (drinking glass), lens (eyeglasses, microscopes).
作为材料不可数，作为容器可数
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.